Japan observation deck
Kaiyodai
You can see 138 km from here, looking north-east.
Calculating the panorama…
Drag to turn around. The relief is drawn 2.2 times taller so the ridges can be read; far ridges are paler, as in the real air.
The view
Up to 138 km away.
Calculated on the relief one degree at a time, up to 250 km, with the curvature of the Earth and the refraction of the air: what stands above the horizon from here.
Our own rating, from the relief and the climate only: open horizon (35 points), how far you see (25), sea and named peaks in view (20) and clear months (20).
- 138 kmFarthest ridgelooking north-east
- 98%Open horizonof the circle where the horizon is below your eyes
- 10%Seaof the circle where the horizon is the sea
- 43Peaks in viewnamed summits that rise above the relief in front
- 255 mAltitudeabove the sea, at the highest point of the viewpoint
The 43 peaks you can name from here
From west to east as you turn around: height, distance and direction. Each one links to its guide on Peakyas, our mountain atlas.
From the relief only: buildings, trees and haze are not in the model. On a hazy day you see much less; 250 km is the limit of our calculation.
The sun
The best sunsets are from October to December.
When the sun really disappears from this viewpoint — behind the relief or into the sea — and in which direction, on the 15th of each month, in local time.
- Jansouth-west6 min before the sea-level sunset31%
- Febwest6 min before the sea-level sunset32%
- Marwest8 min before the sea-level sunset34%
- Aprwest14 min before the sea-level sunset34%
- Maynorth-west20 min before the sea-level sunset31%
- Junnorth-west22 min before the sea-level sunset25%
- Julnorth-west18 min before the sea-level sunset21%
- Augwest14 min before the sea-level sunset23%
- Sepwest10 min before the sea-level sunset32%
- Octwest8 min before the sea-level sunset40%
- Novsouth-west4 min before the sea-level sunset38%
- Decsouth-west4 min before the sea-level sunset37%
- Time: when the sun goes behind the horizon you see from here.
- Minutes: how much earlier the relief hides the sun.
- %: share of clear sky that month (NASA, 2001–2020).
The highlighted months are the clearest. Golden hour starts about an hour before.
The place
Kaiyodai.
Kaiyodai is an observation deck in Japan, 255 m above the sea.
On a clear day the farthest ridge you can see is 138 km away, looking north-east.
The sea fills 10% of the horizon.
43 named peaks rise above the relief in front; the most prominent is Tyatya (1,819 m), 138 km away.
The horizon is open, below your eyes, over 98% of the circle.
The skies are clearest from October to December.
Get there and stay
- Going upCheck the opening hours before you go: towers and decks close in bad weather.
- ウシ空のキャンプ場campsite · 0.1 km · 2 within 10 km
- ホテル パセオplace to stay · 9.4 km · 12 within 10 km
- Nakashibetsunearest town · 11 km in a straight linePlaces to stay in NakashibetsuBooking.com · sponsored link↗
- Nakashibetsu Airport (SHB)nearest airport with scheduled flights · 8 km in a straight lineCar hire at KUH airport (Kushiro)Discover Cars · sponsored link↗
Plan the visit
A guided tour, a bed nearby, a car.
Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.
From above
The viewpoint and its surroundings.
The satellite image of the 6 × 6 km around the viewpoint, with what OpenStreetMap shows nearby.
Around, in OpenStreetMap
- 1other viewpoints within 5 km開陽台展望台
- 2marked trails within 3 kmKitanemuro Raunch Way - section 1, Kitanemuro Raunch Way - section 2
- 1shelters and huts within 5 km
- 1car parks within 3 km
- 2campsites within 10 kmウシ空のキャンプ場, 中標津町緑ヶ丘森林公園 林間キャンプ場
- 12places to stay within 10 kmホテル パセオ, 中標津保養所温泉旅館, ホテルマルエー温泉本館 and 9 more
- named peaks within 5 km
- cable car and funicular stations within 5 km
- visitor centres within 5 km
- restaurants and cafés within 3 km
Counted in OpenStreetMap, the map anyone can edit. A low number may just mean nobody has mapped it yet.
In our other atlases
What you see from Kaiyodai, and what is near.
Everything around this viewpoint — mountains, water, forests, birds, caves and the night sky — in the family's atlases.
Peakyas25 mountains within 25 km
Darkskyas1 dark-sky places within 30 kmFigures from the sister sites' databases (Wikidata, HydroATLAS, GeoNames, OpenStreetMap, GBIF). Links open when each site is online.
Photographs
The view, as people saw it.
Other viewpoints nearby.
Kaiyodai
Japan
- 78Viewyas Score
- 138 kmFarthest ridge
- 43Peaks in view
- 255 mAltitude
Hosooka Observatory
Japan · 67 km
- 79Viewyas Score
- 151 kmFarthest ridge
- 128Peaks in view
- 50 mAltitude
Rausu Kunashiri Observation Tower
Japan · 51 km
- 67Viewyas Score
- 94 kmFarthest ridge
- 25Peaks in view
- 154 mAltitude
Taisetsu Observatory
Japan · 172 km
- 51Viewyas Score
- 26 kmFarthest ridge
- 20Peaks in view
- 401 mAltitude
Where these figures come from
| Name and type | Wikidata (Q11655331) · CC0 |
|---|---|
| Sun | J. Meeus, Astronomical Algorithms |
| Peaks in view | Peakyas (Wikidata, CC0) |
| Panorama and altitude | Copernicus DEM GLO-90 / GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA |
| Clouds | NASA POWER (CERES SYN1deg, 2001–2020; MERRA-2) |
| What is around | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
| Sister atlases | Peakyas, Islandyas, Darkskyas |
Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.
The family
Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers, canyons, caves, dark skies, viewpoints, birdwatching or forests?
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Every canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.Visit 
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Every cave with its real depth and length: the rock above, the temperature inside all year, and how to visit.Visit dark skies
Where the night is still dark: the sky of every place, the Milky Way month by month, the Moon, eclipses and auroras.Visit 
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